381010745866 has 8 divisors (see below), whose sum is σ = 571550678244. Its totient is φ = 190493853120.

The previous prime is 381010745837. The next prime is 381010745867. The reversal of 381010745866 is 668547010183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 380591520241 + 419225625 = 616921^2 + 20475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (381010745867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5718505 + ... + 5784748.

Almost surely, 2^381010745866 is an apocalyptic number.

381010745866 is a deficient number, since it is larger than the sum of its proper divisors (190539932378).

381010745866 is a wasteful number, since it uses less digits than its factorization.

381010745866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11519816.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 381010745866 in words is "three hundred eighty-one billion, ten million, seven hundred forty-five thousand, eight hundred sixty-six".